Physics calculators

Kinematics, dynamics, and classical-physics shortcuts.

Solve the common physics textbook calculations — velocity, acceleration, force, and energy — with units correctly tracked end to end.

Calculators

372

Topics: All Mechanics (114) Electricity (48)

Physics

Signal-to-Noise Ratio (SNR) in Decibels Calculator

Calculates SNR in dB from signal and noise power levels: SNR_dB = 10·log₁₀(P_s/P_n). Converts between linear SNR and dB....

basic

1,404 4.3 1 min

Physics

Nyquist Minimum Sampling Rate from Signal Bandwidth Calculator

Calculates the Nyquist–Shannon minimum sampling frequency f_s = 2 × f_max and the maximum frequency that can be reconstr...

basic

23,451 4.2 1 min

Physics

Nyquist Sampling Rate from Signal Bandwidth Calculator

Calculates the Nyquist (minimum) sampling rate f_s = 2·f_max. For audio (20 kHz) → 40 kHz; CD standard = 44.1 kHz. Also...

basic

18,189 4.7 1 min

Physics / Mechanics

Soil Bearing Capacity from Cohesion and Friction Angle Calculator

Estimates ultimate bearing capacity using Terzaghi's formula: q_u = c·N_c + γ·D·N_q + 0.5·γ·B·N_γ. N values are function...

basic

16,457 4.0 1 min

Physics

Natural Frequency Spring-Mass System Calculator

Calculates the undamped natural frequency and period of a spring-mass system from stiffness k and mass m.

basic

12,485 4.2 1 min

Physics

Pump Hydraulic Power and Efficiency Calculator

Calculates hydraulic power (useful power delivered to fluid) and shaft power input from fluid density, flow rate, pump h...

basic

3,778 4.8 1 min

Physics

Pulley Mechanical Advantage & Load Calculator

Calculates mechanical advantage, required effort force, and rope travel distance for a compound pulley system to lift a...

basic

1,213 3.9 1 min

Physics

Pneumatic Cylinder Air Thrust Calculator

Calculates the theoretical and net thrust force of a pneumatic cylinder from bore diameter, supply pressure, and rod sea...

basic

609 4.0 1 min

Physics

Pipe Internal Diameter & Flow Rate Calculator

Calculates volumetric flow rate, pipe cross-sectional area, and mean velocity for round pipe flow from diameter and velo...

basic

22,319 4.7 1 min

Physics

Hazen–Williams Pipe Flow Velocity Calculator

Calculates flow velocity using the Hazen–Williams equation: V = 0.8492 × C × R_h^0.63 × S^0.54 (SI), where C is roughnes...

basic

20,347 4.5 1 min

Physics

Heat Exchanger LMTD and Area Calculator

Calculates the Log Mean Temperature Difference (LMTD) for a counter-flow heat exchanger and the required heat transfer a...

basic

13,302 3.9 1 min

Physics

Fourier Series Fundamental Frequency and Period Calculator

Calculates fundamental frequency f₀ = 1/T, angular frequency ω₀ = 2πf₀, and the first 5 harmonics for a periodic signal....

basic

12,542 4.8 1 min

Physics

Simply Supported Beam Deflection (UDL) Calculator

Calculates the maximum mid-span deflection and maximum bending moment of a simply supported beam under a uniformly distr...

basic

4,242 4.8 1 min

Physics / Mechanics

Spring Combined Series & Parallel Rate Calculator

Calculates the equivalent spring rate for up to three springs in series, parallel, or a mixed combination.

basic

3,191 4.9 1 min

Physics

Bandwidth Efficiency (Spectral Efficiency) Calculator

Calculates spectral efficiency η = R_b / B (bit/s/Hz), where R_b is the bit rate and B is the bandwidth. Shannon limit:...

basic

884 4.9 1 min

Physics

Flow Turbulence Intensity from Reynolds Number Calculator

Calculates the Reynolds number Re = ρvD/μ, classifies the flow regime (laminar Re < 2300, transitional 2300–4000, turbul...

basic

24,596 4.3 1 min

Physics

Arc Weld Heat Input per mm Calculator

Calculates weld heat input in kJ/mm from welding voltage, current, travel speed, and arc efficiency for standard arc wel...

basic

23,005 3.9 1 min

Physics

CPU Instruction Execution Time from CPI and Clock Rate Calculator

Calculates CPU execution time = (instruction count × CPI) / clock_frequency, and MIPS = clock_frequency / (CPI × 10⁶).

basic

21,362 4.4 1 min

Physics

Grey Body Emissivity Radiation Heat Transfer Calculator

Calculates thermal radiation power emitted by a grey body surface from its emissivity, area, and absolute temperature us...

basic

21,173 4.4 1 min

Physics / Mechanics

Tensile Strength and Yield Stress from Force and Area Calculator

Calculates engineering stress σ = F/A, the percentage elongation to failure, and the reduction in area for a tensile tes...

basic

14,295 5.0 1 min

Physics

Flywheel Stored Energy & RPM Calculator

Calculates the kinetic energy stored in a flywheel from its moment of inertia and rotational speed, and the usable energ...

basic

13,709 4.8 1 min

Physics

Pressure Vessel Hoop Stress Calculator

Calculates hoop (circumferential) stress and longitudinal stress in a thin-walled pressure vessel from internal pressure...

basic

8,040 4.0 1 min

Physics

Data Compression Ratio and Space Saving Calculator

Calculates compression ratio CR = original / compressed, space saving % = (1 − 1/CR) × 100, and the amount of space free...

basic

22,493 4.8 1 min

Physics

Transformer Efficiency & No-Load Losses Calculator

Calculates transformer efficiency from output power, core (iron) losses, and copper (winding) losses at various load lev...

basic

21,209 4.4 1 min

Showing 313 to 336 of 372 results

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Solve the common physics textbook calculations — velocity, acceleration, force, and energy — with units correctly tracked end to end.

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Physics calculators

Signal-to-Noise Ratio (SNR) in Decibels Calculator

Nyquist Minimum Sampling Rate from Signal Bandwidth Calculator

Nyquist Sampling Rate from Signal Bandwidth Calculator

Soil Bearing Capacity from Cohesion and Friction Angle Calculator

Natural Frequency Spring-Mass System Calculator

Pump Hydraulic Power and Efficiency Calculator

Pulley Mechanical Advantage & Load Calculator

Pneumatic Cylinder Air Thrust Calculator

Pipe Internal Diameter & Flow Rate Calculator

Hazen–Williams Pipe Flow Velocity Calculator

Heat Exchanger LMTD and Area Calculator

Fourier Series Fundamental Frequency and Period Calculator

Simply Supported Beam Deflection (UDL) Calculator

Spring Combined Series & Parallel Rate Calculator

Bandwidth Efficiency (Spectral Efficiency) Calculator

Flow Turbulence Intensity from Reynolds Number Calculator

Arc Weld Heat Input per mm Calculator

CPU Instruction Execution Time from CPI and Clock Rate Calculator

Grey Body Emissivity Radiation Heat Transfer Calculator

Tensile Strength and Yield Stress from Force and Area Calculator

Flywheel Stored Energy & RPM Calculator

Pressure Vessel Hoop Stress Calculator

Data Compression Ratio and Space Saving Calculator

Transformer Efficiency & No-Load Losses Calculator